desfreq function

Description of frequencies

Description of the rows of a contingency table or of groups of rows of a contingency table

descfreq(donnee, by.quali = NULL, proba = 0.05)

Arguments

• donnee: a data frame corresponding to a contingency table (quantitative data)
• by.quali: a factor used to merge the data from different rows of the contingency table; by default NULL and each row is characterized
• proba: the significance threshold considered to characterized the category (by default 0.05)

Returns

Returns a list with the characterization of each rows or each group of the by.quali. A test corresponding to the hypergeometric distribution is performed and the probability to observe a more extreme value than the one observed is calculated. For each row (or category), each of the columns characterising the row are sorted in ascending order of p-value.

Author(s)

Francois Husson francois.husson@institut-agro.fr

See Also

catdes, condes, textual

References

Lebart, L., Morineau, A. and Piron, M. (1995) Statistique exploratoire multidimensionnelle, Dunod.

Examples

data(children)
descfreq(children[1:14,1:5])    ## desc of rows
descfreq(t(children[1:14,1:5])) ## desc of columns